Water grate



Jan. 7, 1930. J. G. GlBsoN Y 1,742,908

WATER GRATE Filed Nov. 20. 192e 35 invention consists of the novel construction Patented Jan. 7, 1930 n UNITED STATES PATENT OFFICEv JOI-IN Gr. GIBSON, OF'VENTNOR CITY,VNEW JERSEY WATER GRATE Application filed November 20, 1926. Serial No. 149,565'.

This invention relates to sectional water Fig. 5, is a view in section taken upon line grates of a type for instance as disclosed in --5` of Fig. 1. U. S. Letters Patent No. 1,366,377, dated For the purpose of illustrating my inven- Janauary 25, 1921. tion I have shown in the acompaying draw- 5 In grates of the character shown in my ings one form thereof which is at present 55 aforesaid patent, experience has taught that preferred by me, since the same has been the recessed bars are both difficult to make found in practice to give satisfactory and and are more or less expensive. Further, a reliable results, although it is to be underrelatively large upper bar surface is prestood that the various instrumentalities of sented as compared to a relativelyv small, perwhich my invention consists can be variously co forated surface for air delivery. A further arranged and organized and that my invenfault resided in the time required to fit the tion is not limited to the precise arrangenumerous air tubes to place. ment and organization of the instrumentali- The leading object of the present invention ties as herein shown and described. is to overcome the above described disadvan- In the drawings the reference numeral 1 65"- tageous features and provide a water grate designates a plurality of spaced, hollow grate construction which may be more cheaply bars goingto make up a so-called watermanufactured and assembled and in which grate. The Opposed faces of these bars are relatively more air emitting surface is pro-k each provided at their bottoms with continuvided as compared with the upper grate bar ous flanges 2 to support between said bars a 7o Surface, plurality of air delivery units 3. The units A further object of the present invention aS ShOWIl in Fig. 2, are 0f Cube shape, are is to provide an arrangement and construehollow, and have open bottoms 4 and perfotion of air delivery unit whereby one of my rat-ed domes 5. These units are provided at novel units takes the place of a plurality of their bottoms with opposed flanges 6. The 75- my former tubes so that not only are addiunits are positioned between the bars so that tional air vents provided but original in- JBhe flanges 6 abut as clearly Seen in Fig. 5. stallation and repairs may be more rapidly The unitsare maintained in place by means performed. of cementitious material 7, best seen in Fig.

A further object is to provide anovel com- 5. As is very clearly seen in Fig. 3, the se bination, arrangement, and connection of Cross-Sectional Mea 0f a bm' 1 1S, aPPIOXl parts for attaining the results sought by the mately but One'half the CI'OSS-SBCUOM Mea foregoing Objectg of a unit whereas in my aforesaid patent the With these and other objects in view, the a. tube? are of .mitch less dlmenslon con' sidered in cross-section. By my novel cons.; struction of cube-like air units a large amount of air vents are spread generally over the grate surface instead of in a restricted area,

Scope of the invention Wm be. more muy un' the advanta es of which are a arent Also derstoqd from .the followmg deSCrlpi-Clon by reason ogf the conguratiopiiJ of units and 5.91 taken in connection with the accompanying bars they can be more readily and cheaply dmWlngS fofmmg Part hereof and m Whlch: positioned and lend themselves more readily Fgl S a VeW 1U Plan 0f my novel gmt@ to convenient storage and shipment. The bar. top edges of the bars are bevelled as at 8, see

hereinafter described and finally claimed.

The nature, characteristic features and Figure 2, is a view in perspective 0f 011 Fig. 3, and the ends of the units facing said 95( of the air delivery units detached. bevelled parts 8 are tapered off at 9 so that Flg. 3, iS 2 WGW 1n SGCtlOIl taken UPOII the the inclined apertures 10 are free to spread line 3-3 of Fig. 1. air jets across the top surfaces of the bars 1.

Fig. 4, is a view in section taken upon line What I claim is: 5c H of Fig. 1; and, Y In a grate of the character stated, a pluic( rality of spaced, parallel, hollow grate bars of relatively narrow cross-section, opposed bottom edges of which' are provided with laterally extending flanges, a plurality of substantially cubical units the top edges of which are bevelled, said units being supported on said flanges, said units being of relatively large cross section having open bottoms and perforated domes, some of which perforations are formed at an angle to the unit/side walls and passed through .said ybevelled parts, opposed flanges at the unit bottoms with said unit flanges abutting to form a space between adjacent units, there being also a space between the units and the outer walls of said grate bars, and cementitious material filling the space around each unit, the top surface of which cementitious material is in a plane below the dome tops so that the perforations formed in said bevelled edges are free to discharge air above the top surface of the cementitious material.

' JOHN G. GIBSON. 

